This article addresses the issue teams encounter when multiple people use clients such as Clash, V2RayN, and sing-box and run into the problem of being unable to update subscription links: including why some people can update the same subscription while others fail, and how this relates to account environment, network exit IP, and client cache.
1. First determine whether it’s a “dead link” or an “unstable environment”
When teams use subscriptions, the most common mistake is having everyone share the same link and update it in bulk at the same time. Some services identify abnormal behavior based on access frequency, login status, source IP, or UA, which can cause the subscription to become temporarily unavailable for fetching. You can first make a quick distinction: copy the subscription link and open it in a browser. If you can see a string of node configurations or a prompt to download a file, the link itself is most likely valid; if it shows 404, expired, or no permission, then the subscription may have expired or there may be an issue with account permissions.
If the browser can open it but the client fails to update, the problem is most likely with the client’s proxy mode, DNS, cache, or the system’s network environment. The free node subscriptions provided on this site are also best updated only as needed. Do not refresh them frequently across multiple devices, so as to avoid triggering temporary restrictions.
2. Team members should troubleshoot in this order
- Confirm that the link has not been altered: when copying the subscription, do not add extra spaces, line breaks, or Chinese punctuation, especially after forwarding it through chat tools, where trailing parameters may be truncated.
- Switch network environments: change from the company Wi-Fi to a mobile hotspot, or disable the current proxy before updating again. Some local networks may block the subscription domain or cache old results.
- Check the client’s proxy settings: Clash-type clients may offer a “use proxy to update” option when updating subscriptions. If direct connection fails, you can enable it; if the proxy itself is unavailable, disable the proxy first and try again.
- Clear old configuration cache: delete the original subscription configuration and create the subscription again instead of just clicking overwrite update. In V2RayN, you can test both “update subscription without proxy” and “via proxy” once each.
- Stagger updates: team members should not all click update at the same time. Operate a few minutes apart to reduce the chance of being identified as abnormal requests.
3. Why account environment stability affects subscriptions
So-called account environment stability mainly refers to whether the access behavior for the same subscription or the same account appears normal. For example, updating today on a domestic home broadband connection, then having multiple overseas data center IPs fetch it simultaneously tomorrow, and then refreshing it intensively on more than a dozen devices the day after—this kind of behavior is easily regarded by the system as high risk. The result may appear as: subscription update timeout, no-permission prompts, empty configurations returned, or only some team members updating successfully.
For team use, it is recommended to designate 1–2 administrators to maintain subscriptions, while regular members import only the links confirmed to be usable by the administrators. If the link needs to be distributed to multiple people, try to use different device remarks to avoid having all clients repeatedly request with the same name and configuration. Also note that subscription links should not be posted publicly on forums, group announcements, or web pages. Subscription links are usually equivalent to access credentials, and misuse by others can affect the entire team.
4. What to do if updates still fail
- Take a screenshot of the error message, such as timeout, 403, certificate error, or empty response, since different errors correspond to different causes.
- Check whether the system time is accurate; certificate validation failures are often related to incorrect time.
- Change DNS, such as using the system’s automatic DNS or a common public DNS, and then fetch the subscription again.
- Upgrade the client to a newer version. Older versions of Clash, V2RayN, and sing-box may be incompatible with newer subscription formats.
In summary: being unable to update a subscription link does not necessarily mean the nodes are unavailable. In team scenarios, it is even more important to pay attention to link permissions, access frequency, network exit IP, and client cache. Troubleshoot in the order of “verify the link in a browser — switch networks — adjust the proxy update method — clear the cache and rebuild the subscription — stagger updates,” and you can usually locate the problem quickly.